CN108604442A - Detection device, keyboard instrument, detection method and program - Google Patents
Detection device, keyboard instrument, detection method and program Download PDFInfo
- Publication number
- CN108604442A CN108604442A CN201780010504.3A CN201780010504A CN108604442A CN 108604442 A CN108604442 A CN 108604442A CN 201780010504 A CN201780010504 A CN 201780010504A CN 108604442 A CN108604442 A CN 108604442A
- Authority
- CN
- China
- Prior art keywords
- during
- light
- signal
- illumination region
- acceptance part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 153
- 238000005286 illumination Methods 0.000 claims abstract description 146
- 230000009471 action Effects 0.000 claims abstract description 44
- 230000033001 locomotion Effects 0.000 claims abstract description 34
- 230000003760 hair shine Effects 0.000 claims abstract description 31
- 230000008859 change Effects 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 21
- 239000000470 constituent Substances 0.000 claims description 13
- 230000006641 stabilisation Effects 0.000 claims description 8
- 238000011105 stabilization Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 18
- 230000003287 optical effect Effects 0.000 description 13
- 238000003860 storage Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 238000007689 inspection Methods 0.000 description 5
- 238000003491 array Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000222712 Kinetoplastida Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/0304—Detection arrangements using opto-electronic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/342—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells the sensed object being the obturating part
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0008—Associated control or indicating means
- G10H1/0016—Means for indicating which keys, frets or strings are to be actuated, e.g. using lights or leds
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
- G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
- G10H1/055—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements
- G10H1/0553—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by switches with variable impedance elements using optical or light-responsive means
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/32—Constructional details
- G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
- G10H1/344—Structural association with individual keys
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/265—Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors
- G10H2220/275—Switching mechanism or sensor details of individual keys, e.g. details of key contacts, hall effect or piezoelectric sensors used for key position or movement sensing purposes; Mounting thereof
- G10H2220/295—Switch matrix, e.g. contact array common to several keys, the actuated keys being identified by the rows and columns in contact
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
- G10H2220/155—User input interfaces for electrophonic musical instruments
- G10H2220/265—Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors
- G10H2220/305—Key design details; Special characteristics of individual keys of a keyboard; Key-like musical input devices, e.g. finger sensors, pedals, potentiometers, selectors using a light beam to detect key, pedal or note actuation
Abstract
Detection device has：Motion detection portion, including multiple illumination regions and multiple acceptance parts, and according to the actions of the different corresponding moving bodys of combination from either one or two of either one or two of the multiple illumination region and the multiple acceptance part, change the light grade of the acceptance part involved by combination corresponding with the moving body；Light emitting control makes each of the multiple illumination region shine successively by during often shining by the supply of drive signal, and keeps the level of signal of the drive signal different in each during multiple units during this shines；And detected value selector, about each of the multiple acceptance part, either one or two of during the multiple unit during selecting described shine by each luminous period in light grade as detected value.
Description
Technical field
The present invention relates to the technologies of the action of multiple moving bodys such as button for detecting keyboard instrument.
Background technology
In the detection device of the action of the moving bodys such as button for detecting keyboard instrument optically, foozle
Either the characteristic error of photo detector caused by variation or light-emitting component becomes problem throughout the year.In patent document 1, it discloses
Each structure for combining the action to detect multiple operating parts based on each and multiple acceptance part by multiple illumination regions,
And adjust the technology of the lighting level of each illumination region and the light grade of each acceptance part.In the technology of patent document 1, certainly
The lighting level of fixed each illumination region makes the no more than defined threshold value of the output signal of any of multiple acceptance parts, another
Aspect, it is multiple in by optical signal from the voltage for corresponding to the light grade of acceptance part is divided, based on specific hair
Light grade come select less than threshold value it is maximum by optical signal as output signal.
Existing technical literature
Patent document
Patent document 1：Special open 2005-195794 bulletins
Invention content
Problems to be solved by the invention
As shown in the technology of patent document 1, even if if lighting level is adjusted to specific numerical value by each illumination region not
The error of the light grade of each acceptance part when can compensate for 1 light from light source.From the light etc. for reducing each acceptance part
The angle of error of grade is set out, in the technology of patent document 1, according to the light grade of each acceptance part and concurrently using selection
The multiple structures by any of optical signal generated.But in above structure, due to need by with acceptance part
The partial pressure of the corresponding voltage of light grade and generate multiple bleeder circuits (arrays of multiple resistive elements) by optical signal and use
In selecting 1 integrated circuit (multiplexer by optical signal successively by each light from light source in by optical signal from multiple
(Multiplexer)), so there is apparatus structure complication.Case above is considered, it is an object of the present invention to press down
The complication of apparatus structure processed, and accurately detect the action of multiple moving bodys.
Means for solving the problems
In order to solve the above project, the detection device of preferred mode of the invention has：Motion detection portion, including more
A illumination region and multiple acceptance parts, and according to either one or two of either one or two of the multiple illumination region and the multiple acceptance part
The action of the different corresponding moving bodys of combination, changes the light etc. of the acceptance part involved by combination corresponding with the moving body
Grade；Light emitting control makes each of the multiple illumination region shine successively by during often shining by the supply of drive signal,
And keep the level of signal of the drive signal different in each during multiple units during this shines；And detected value
Selector is selected described more during described shine by each luminous period about each of the multiple acceptance part
Light grade in either one or two of during a unit is as detected value.
The keyboard instrument of the preferred mode of the present invention has multiple buttons and detects each of the multiple button and moves
The detection device of work, the detection device include：Motion detection portion, including multiple illumination regions and multiple acceptance parts, and according to
The different corresponding buttons of combination of either one or two of the multiple illumination region and either one or two of the multiple acceptance part move
Make, changes the light grade of the acceptance part involved by combination corresponding with the button；Light emitting control passes through the confession of drive signal
It gives and each of the multiple illumination region is made to shine successively by the period that often shines, and during multiple units during this shines
It is each in keep the level of signal of the drive signal different；And detected value selector, about the multiple acceptance part
It is each, by each luminous period select it is described shine during the multiple unit during either one or two of in light
Grade is as detected value.
The program of the preferred mode of the present invention, the computer for allowing to control action test section executes processing, described dynamic
It includes multiple illumination regions and multiple acceptance parts to make test section, and according to either one or two of the multiple illumination region and it is the multiple by
The actions of the corresponding moving bodys of different combinations in either one or two of light portion, change involved by combination corresponding with the moving body by
The light grade in light portion, the processing are：Light emitting control processing, makes the multiple illumination region by the supply of drive signal
It is each by often shine during shine successively, and this shine during multiple units during it is each in make the drive signal
Level of signal it is different；And detected value selection processing, about each of the multiple acceptance part, by each described luminous
Period select it is described shine during the multiple unit during either one or two of in light grade as detected value.
Detection method involved by the preferred mode of the present invention, can control comprising multiple illumination regions and multiple light
Portion, and according to from the corresponding shifting of different combinations of either one or two of either one or two of the multiple illumination region and the multiple acceptance part
The action of kinetoplast changes the calculating in the motion detection portion of the light grade of the acceptance part involved by combination corresponding with the moving body
In machine, each of the multiple illumination region is set to shine successively by during often shining by the supply of drive signal, and in the hair
Keep the level of signal of the drive signal different in each during multiple units during light, about it is the multiple by
Light portion it is each, by each luminous period select it is described shine during the multiple unit during either one or two of in
Light grade is as detected value.
Description of the drawings
Fig. 1 is the structure chart of the keyboard instrument in the first embodiment of the present invention.
Fig. 2 is the structure chart of the detection device in the first embodiment of the present invention.
Fig. 3 is the schematic diagram of test section.
Fig. 4 is the structure chart of the detection device for the function of being conceived to control device.
Fig. 5 is the definition graph of the action of light emitting control.
Fig. 6 is the flow chart for detecting control process.
Fig. 7 is the definition graph for the setting for detecting the level of signal in control process.
Fig. 8 is the flow chart of motion detection processing.
Fig. 9 is the definition graph of the generation of the light grade in second embodiment.
Figure 10 is the structure chart of the detection device in third embodiment.
Specific implementation mode
<First embodiment>
Fig. 1 is the structure chart of the keyboard instrument 200 involved by the first embodiment of the present invention.As illustrated in fig. 1, first
The keyboard instrument 200 of embodiment has keyboard 210 and detection device 100.Keyboard 210 includes more with white key and black key
A (such as 88) button 30 and constitute.
Fig. 2 is the structure chart of the detection device 100 of the first embodiment of the present invention.The detection device of first embodiment
100 be for keyboard instrument 200 and detect optically multiple buttons 30 each action sensor.Such as Fig. 2 institutes example
Show, the detection device 100 of first embodiment has control device 12, storage device 14, motion detection portion 16, A/D converters
18, sounding circuit 20 and tone playing equipment 22.
Control device 12 is for example (existing by CPU (central processing unit (Central Processing Unit)) or FPGA
Field programmable gate array (Field-Programmable Gate Array)) etc. processing circuits realize, plan as a whole ground control detection dress
Set 100 each element.The various data that the program and control device 12 that 14 storage control device 12 of storage device executes use.Example
Combination as recording medium or a variety of recording mediums well known to semiconductor recording medium either magnetic recording media etc. can be used
As storage device 14.
Motion detection portion 16 be detect keyboard instrument 200 each button 30 action (specifically player's button when
Each button 30 displacement) element, have multiple (M) illumination region E1~EMWith multiple (N number of) acceptance part R1~RN(M and
The natural number that N is 2 or more).Arbitrary 1 illumination region Em(m=1~M) includes such as LED (light emitting diode (Light
Emitting Diode)) etc. light-emitting components and constitute, and pass through drive signal ZmSupply and emit light (hereinafter referred to as " detection
Light ").Arbitrary 1 acceptance part Rn(n=1~N) includes the photo detector such as photodiode and constitutes, and generation and light
The corresponding detection signal Q of graden。
M illumination region E1~EMWith N number of acceptance part R1~RNComposition longitudinal direction M rows × transverse direction N row (such as longitudinal 12 rows × cross
To 8 row) sensor matrices, and with arbitrary 1 illumination region EmWith arbitrary 1 acceptance part RnCombination accordingly configure detection
Portion Dm,n.Each test section Dm,nThe button 30 different from keyboard 210 corresponds to.In addition, each test section Dm,nWith the correspondence of each button 30
Relationship is arbitrary.In addition, in fig. 2, about each illumination region EmWith each acceptance part RnWhole combinations all easily illustrate inspection
Survey portion Dm,n, but actually there is also no configuration test section Dm,nCombination.
Fig. 3 is to instantiate arbitrary 1 test section Dm,nSchematic diagram.As illustrated in fig. 3, arbitrary 1 test section Dm,nIt is tool
Preparation light path 162, light guide 164, light guide 166, by the sensing head (sensor of light path 168 and occulter 32
head).Light emitting path 162 and be to detect the path of light propagation, such as constitute comprising optical fiber by light path 168.From shine
Portion EmThe detection light of outgoing is propagated on light emitting path 162 and reaches light guide 164, and the reflection inside light guide 164 is passed through
And it is emitted to 166 side of light guide.The detection light of light guide 166 is incident on from light guide 164, by inside light guide 166
It reflects and is incident to by light path 168, and propagated on by light path 168 and reach acceptance part Rn.Occulter 32 is, for example, quilt
It is fixed on the baffle (shutter) of the light-proofness on the bottom surface of each button 30 of keyboard instrument 200, the actuation of keys with user
It links and is moved between light guide 164 and light guide 166.Therefore, each acceptance part RnLight grade (detection signal QNLetter
Number grade) it is changed according to the position (i.e. key-press status) of each button 30.
In N number of test section D corresponding with the m rows in motion detection portion 16m,1~Dm,nEach light emitting path 162, from
M-th of 1 illumination region EmThe detection light of outgoing is commonly supplied to, and has passed through the n-th row pair with motion detection portion 16
The M test section D answered1,n~Dm,nEach detection light by light path 168 pass through n-th of 1 acceptance part RnAnd by by
Light.Therefore, by detecting arbitrary 1 illumination region EmN number of acceptance part R when shining1~RNEach light grade, Neng Goujian
It surveys and illumination region EmWith each acceptance part RnThe corresponding each button of combination 30 action (test section Dm,nState).In addition, for example
Disclosed in Unexamined Patent 9-152871 bulletins, it can also use by multiple acceptance part RnReceive from 1 illumination region EmThe inspection of outgoing
Survey the structure of light or by 1 acceptance part RnReceive from multiple illumination region EmThe structure of the detection light of outgoing.
The A/D converters 18 of Fig. 2 are by N number of acceptance part R1~RNEach generation simulation detection signal QnIt is transformed to count
Digital data (hereinafter referred to as " light grade ") L.Control device 12 according to by A/D converters 18 convert after light grade L when
Between sequence parse the state of each button 30, and generated according to the analysis result of light grade L specified in time series with
The such performance data of the playback/noise reduction and intensity of 30 corresponding musical sound of each button.By such performance data storage to storage device 14.That is,
Store the performance for the keyboard instrument 200 that user carries out.The sounding circuit 20 of Fig. 2 generates the performance sound specified by such performance data
Voice signal.By to tone playing equipment 22 (loud speaker or earphone) supply sounding circuit 20 generate voice signal, regeneration by
The specified performance sound of such performance data.In addition, driving mechanism (such as solenoid (solenoid)) can also be by according to performance number
According to driving each button 30 to realize the automatic Playing of keyboard instrument 200.In addition, control device 12 can also realize source of sound electricity
The function on road 20.
Fig. 4 is the structure chart of the detection device 100 for the function of being conceived to control device 12.As exemplified in figure 4, first implements
The control device 12 of mode is by executing the program being stored in storage device 14, to as control action test section
16 multiple elements (light emitting control 42, detected value selector 44 and detection control unit 46) and function.In addition, also
Control dress is realized using the structure that the function of control device 12 is dispersed in multiple devices or by dedicated electronic circuit
Set the structure of a part for 12 function.
Light emitting control 42 makes the M illumination region E in motion detection portion 161~EMEach shine successively.Fig. 5 is the control that shines
Each illumination region E that portion 42 processed carries outmControl definition graph.As illustrated in Figure 5, in each button 30 of detection keyboard instrument 200
Action processing (hereinafter referred to as " motion detection processing ") SB in, light emitting control 42 makes M illumination region E1~EMEach press
It often shines period PEmIt shines successively.Make M illumination region E1~EMEach luminous action successively press it is (following per the defined period
Referred to as " detection cycle ") P is repeated.The duration of detection cycle P is about 1msec, is shone period PEmDuration be about 80 μ sec
(≈1/M).The light emitting control 42 of first embodiment passes through M luminous periods PE in each detection cycle P1~PEMIn
M-th of luminous period PEmTo illumination region EmSupply drive signal ZmAnd make illumination region EmIt shines.Drive signal ZmIt is to make illumination region
EmLuminous current signal.
As illustrated in Figure 5, arbitrary 1 shines period PEmIncluding U2 during U1 and unit during unit.For example, the unit phase
Between U1 be shine period PEmFirst half during, during unit U2 be shine period PEmLater half period.The hair of first embodiment
Photocontrol portion 42 is in each luminous period PEmUnit during during U1 and unit U2 make illumination region EmLighting level it is different.Specifically
For, light emitting control 42 is by making supply to illumination region EmDrive signal ZmLevel of signal (the specifically magnitude of current)
The U1 and U2 is different and make illumination region E during unit during unitmLighting level in luminous period PEmInterior variation.Such as Fig. 5 institutes
It illustrates, the drive signal Z during unit in U1mLevel of signal X1mLess than the drive signal Z in U2 during unitmSignal etc.
Grade X2m.Therefore, in luminous period PEmInterior illumination region EmLighting level periodically increase.
As illustrated in above, in the first embodiment, due in each luminous period PEmInterior illumination region EmLighting level
It changes, N number of acceptance part R1~RNEach light grade in each luminous period PEmU2 during U1 and unit during interior unit
Middle difference.A/D converters 18 are by by N number of acceptance part R1~RNEach generation detection signal QnIn each luminous period PEmIt is interior
Unit during carry out A/D respectively in U2 during U1 and unit and convert to generate light grade L.That is, about N number of acceptance part
R1~RNIt is each, by often shine period PEmAcceptance part R during generation unit in U1nLight grade L1 and unit during U2
In acceptance part RnLight grade L2.
The detected value selector 44 of Fig. 4 is about N number of acceptance part R1~RNIt is each, select shine period PEmThe interior unit phase
Between light grade L during U1 and unit in either one or two of U2 (that is, during light grade L1 and unit during unit in U1
Either one or two of light grade L2 in U2) it is used as detected value dm,n.Due to detected value dm,nIt is illumination region EmLuminous luminous period
PEmIn acceptance part RnLight grade L, be equivalent to expression and test section Dm,nThe position (key-press status) of corresponding button 30
Numerical value.
From illumination region EmTo acceptance part RnUntil path length (in light emitting path 162 and the light in by light path 168
Loss) in N number of acceptance part R1~RNIt is each in can be different.Constitute light emitting path 162 or the optical fiber by light path 168
The surface state of end face is in N number of acceptance part R1~RNIt is each in can also be different.In addition, being detected using in the face of light-emitting surface
The different illumination region E of the intensity of lightmStructure in, according to the position of the light emitting path 162 for light-emitting surface, from illumination region EmTo
The light quantity of the incident detection light of each light emitting path 162 can be different.Acceptance part R caused by foozle or throughout the year variationn's
Characteristic (such as light income and detection signal QnLevel of signal relationship) may also be by every acceptance part RnAnd it is different.Above institute's example
The various differences shown can cause make arbitrary 1 illumination region EmLight grade L when shining is in N number of acceptance part R1~RNBetween not
Together.
In the first embodiment, by making to be fed into each illumination region EmDrive signal ZmLevel of signal press per single
U (U1 or U2) is different and make each illumination region E during positionmLighting level in luminous period PEmInterior variation, on the other hand, by every
Acceptance part RnSelection shines period PEmEach acceptance part R during any one interior unit in UnLight grade L as detected value
dm,n.That is, by per acceptance part RnSelection makes illumination region EmWith different lighting levels shine when multiple light grade L (L1 and
Either one or two of) L2 it is used as detected value dm,n.Therefore, it is possible to compensate each acceptance part RnLight grade L error it is (and then high-precision
Detect the action of each button 30 in degree ground).It will be with each acceptance part R further, since not needed from principlenLight grade L correspond to
Voltage divided and generate multiple bleeder circuits (arrays of multiple resistive elements) by optical signal and for from it is multiple by
1 integrated circuit (multiplexer by optical signal is selected successively by the luminous of each illumination region in optical signal
(Multiplexer)), so capableing of the complication of restraining device structure compared with the technology of patent document 1.As previously discussed,
According to first embodiment, the complication with restraining device structure, and can accurately detect the action of each button 30
Advantage.
The detection control unit 46 of Fig. 4 controls motion detection processing SB illustrated above.Specifically, detection control unit 46
By each illumination region EmIt (often shines period PEm) level of signal X1 during setting unit in U1mWith the letter in U2 during unit
Number grade X2m.The detection control unit 46 of first embodiment presses each illumination region EmSetting signal grade X1mAnd level of signal
X2mCombination so as to illumination region EmLevel of signal X1 is suppliedmAnd level of signal X2mEither one or two of drive signal Zm
In the case of N number of acceptance part R1~RNEach light grade L be less than threshold value (upper limit value) LTH.Detection control unit 46 is engaged in
First setting signal grade X1 in chosen multiple level of signal AmAnd level of signal X2m.In addition, the inspection of first embodiment
It surveys control unit 46 and presses each illumination region EmWith acceptance part RnCombination (each test section Dm,n) to set detected value selector 44 be
Either one or two of light grade L2 during the no light grade L1 that should be selected during unit in U1 and unit in U2 is as detected value
dm,n(hereinafter referred to as " selecting object grade ").
Fig. 6 is by each illumination region EmSetting signal grade X1mAnd level of signal X2mAnd press each test section Dm,nIf
Determine the flow chart of processing (hereinafter referred to as " detection control process ") SA of selecting object grade.Such as opening with detection device 100
Detection control process SA that is dynamic or starting Fig. 6 from being designated as opportunity of user, and executing detection control process SA
After start motion detection processing SB.Whole buttons 30 is maintained release conditions in the execution of detection control process SA.That is, from
Each illumination region EmThe detection light of outgoing does not reach N number of acceptance part R by 32 shading of occulter1~RNIt is each.
If starting to detect control process SA, detects control unit 46 and select M illumination region E1~EMEither one or two of (hereinafter referred to as
For " selection illumination region Em”)(SA1).It is then detected that control unit 46 will become level of signal X1mAnd level of signal X2mCandidate
Level of signal A be set as initial value (SA2).The initial value of level of signal A is in multiple level of signal A chosen in advance
Minimum value.
Detect control unit 46 by selection illumination region EmThe drive signal Z of the level of signal A of supply at this stagemAnd make choosing
Select illumination region EmIt shines (SA3).The detection light being emitted from selection illumination region Em reaches N number of acceptance part R1~RNIt is each and each
Acceptance part RnLight grade L exported from A/D converters 18.Detection control unit 46 obtains N number of acceptance part from A/D converters 18
R1~RNEach light grade L (SA4).Due to for example each acceptance part RnCharacteristic (such as actually arrive in acceptance part Rn's
The relationship of light quantity and light grade L as measured value) error is had, so what detection control unit 46 obtained in step SA4
Light grade L can be by each acceptance part RnAnd it is different.
Detection control unit 46 judges N number of acceptance part R1~RNEither one or two of light grade L whether be more than threshold value LTH(whether there is or not
Overflow (overflow)) (SA5).In N number of acceptance part R1~RNWhole light grade L be less than threshold value LTHIn the case of (SA5：
It is no), detection control unit 46 makes level of signal A increase by 1 stage (SA6), and shifts the process to step SA3.That is, appointing in N number of
One acceptance part RnLight grade L be more than threshold value LTH(SA5 before：Be), about make level of signal A from initial value periodically
Increased various situations are repeated for selecting illumination region EmDrive signal ZmSupply (SA3) and each acceptance part Rn's
The acquisition (SA4) of light grade L.
In N number of acceptance part R1~RNAny one light grade L be more than threshold value LTHIn the case of (SA5：It is), detection control
Portion 46 sets according to the level of signal A of current time point and selects illumination region EmRelated level of signal X1mAnd level of signal
X2m(SA7).Specifically, during unit U1 level of signal X1mIt is set to the level of signal A of current time point declining 1 rank
The level of signal A of section, the level of signal X2 of U2 during unitmIt is set to the level of signal A of current time point.It will be by walking above
Suddenly the level of signal X1 being setmAnd level of signal X2mBy each illumination region EmStore storage device 14.
Fig. 7 is level of signal X1mAnd level of signal X2mSetting definition graph.In the figure 7, about making level of signal A
Variation multiple situations (stage 1, stage 2 and stage 3) it is each, it is illustrated that N number of acceptance part R1~RNEach light etc.
Grade L and threshold value LTHRelationship.Level of signal A2 in stage 2 is more than the level of signal A1 in the stage 1, the signal etc. in the stage 3
Grade A3 is more than the level of signal A2 (A1 in the stage 2<A2<A3).
In the stage 1, due to N number of acceptance part R1~RNWhole light grade L be less than threshold value LTH(SA5：It is no), so into
Row is extremely using the stage 2 for the level of signal A2 that level of signal A1 was improved to 1 stage.In the stage 2 similarly, due to it is N number of by
Light portion R1~RNWhole light grade L be less than threshold value LTH(SA5：It is no), so carrying out that level of signal A2 is improved 1 rank to use
The stage 3 of the level of signal A3 of section.In the stage 3,3 acceptance part R in N number of1~R3Light grade L be more than threshold value LTH
(SA5：It is).Therefore, using the level of signal A2 in the stage 2 before tight as the level of signal X1 in U1 during unitm, and
And using the level of signal A3 in the stage 3 as the level of signal X2 in U2 during unitm(SA7)。
If being set by above step and selecting illumination region EmRelated level of signal X1mAnd level of signal X2m, then examine
Control unit 46 is surveyed by selection illumination region EmWith N number of acceptance part R1~RNEach each combination, be set in execute motion detection at
Which (unit of the light grade L2 during light grade L1 and the unit during unit in U1 in U2 should be selected when managing SB
During period U1 and unit U2 which) (SA8).Specifically, the detection control unit 46 of first embodiment is in signal
Grade X1mAnd level of signal X2mIn, adopt and is fed to selection illumination region EmWhen acceptance part RnLight grade L less than
Threshold value LTHIn the range of become a maximum side as motion detection processing SB in selecting object grade.If for example, imaginary picture of primitive people 7
Illustrated by situation, then about acceptance part R1~R3Specified level of signal X1m(=A2) alternatively object level, about remaining
Acceptance part R4~RN, specify level of signal X2m(=A3) alternatively object level.
Selection signal grade X1mMean to select the light grade L1, and selection signal grade X2 of U1 during unitmMeaning
Taste the light grade L2 for selecting U2 during unit.It is therefore intended that level of signal X1mAnd level of signal X2mAny one conduct
The processing of the step SA8 of selecting object grade, during in other words referring to order position during U1 and unit U2 any one conduct
The processing of selecting object grade or either one or two of specified light grade L1 and light grade L2 alternatively object level
Processing.By the selecting object grade being set by above step by illumination region EmWith acceptance part RnEach of combination storage arrive
Storage device 14.In addition it is possible to exchange the sequencing of step SA7 and step SA8.
The M illumination region E about motion detection portion 161~EMWhole, detection control unit 46 determine whether to complete it is above
It handles (SA1~SA8) (SA9).Judge result for negative in the case of (SA9：It is no), control unit 46 is detected from M illumination region
E1~EMThe middle untreated illumination region E of selectionmAlternatively illumination region Em(SA1), and about updated selection illumination region EmIt holds
Processing (SA2~SA9) after row.About M illumination region E1~EM, in level of signal X1mAnd level of signal X2mSetting
(SA7) and the stage (SA9 that completes of the setting of selecting object grade (SA8)：It is), terminate the detection control process SA of Fig. 6.
Fig. 8 is according to the result of detection control process SA illustrated above and the motion detection that executes handles the flow of SB
Figure.To detect the completion of control process SA or be designated as opportunity from user, in the M light emission period of each detection cycle P
Between PE1~PEMIt is each it is middle execute Fig. 8 motion detection handle SB.If shining period PE about arbitrary 1mStart motion detection
SB is handled, then light emitting control 42 selects M illumination region E1~EMIn with this shine period PEmCorresponding illumination region Em(hereinafter referred to as
For " driving illumination region Em”)(SB1)。
Light emitting control 42 is about driving illumination region EmIt determines by the level of signal X1 of detection control process SA settingsmAnd
Level of signal X2m(SB2).Specifically, light emitting control 42 obtains driving illumination region E from storage device 14mLevel of signal
X1mAnd level of signal X2m。
If shining period PEmUnit during U1 arrive, then light emitting control 42 is by will determine in step SB2
Level of signal X1mDrive signal ZmSupply extremely driving illumination region EmTo make driving illumination region EmIt shines (SB3).On the other hand, A/
D converters 18 pass through the driving illumination region E in U1 during unitmShine in N number of acceptance part R1~RNEach output detection
Signal QnA/D changes bring and determine N number of light grade L1.Detected value selector 44 obtains each acceptance part R from A/D converters 18n's
N number of light grade L1 (SB4).
If in addition, shining period PEmUnit during U2 arrive, then light emitting control 42 about U2 during unit pass through to
Drive illumination region EmSupply the level of signal X2 determined in step SB2mDrive signal ZmTo make driving illumination region EmIt shines
(SB5).A/D converters 18 pass through the driving illumination region E in U2 during unitmShine in N number of acceptance part R1~RNIt is each defeated
The detection signal Q gone outnA/D changes bring and determine N number of light grade L2.Detected value selector 44 obtains respectively from A/D converters 18
Acceptance part RnN number of light grade L2 (SB6).
As illustrated in above, about N number of acceptance part R1~RNEach units of measurement during light grade L1 and list in U1
Light grade L2 during position in U2.Detected value selector 44 is about N number of acceptance part R1~RNEach selection light grade L1 with
And either one or two of light grade L2 is used as detected value dm,n(SB7).Specifically, the selection of detected value selector 44 shines period PEm
Unit during during U1 and unit in U2, about driving illumination region EmWith acceptance part RnCombination to driving illumination region Em
Supply is designated as the level of signal (X1 of selecting object grade in detecting control process SAmOr X2m) drive signal Zm's
Light grade L during unit in U is as detected value dm,n.If the situation of such as Fig. 7 is imagined, about acceptance part R1~R3, choosing
It selects in drive signal ZmIt is set to level of signal X1m(=A2) unit during the light grade L1 that gets in U1 as inspection
Measured value dm,n, and about remaining acceptance part R4~RN, select in drive signal ZmIt is set to level of signal X2m(=A3)
The light grade L2 got in U2 during unit is as detected value dm,n.That is, will be in each acceptance part RnLight grade L be less than
Threshold value LTHIn the range of maximum level of signal drive signal ZmIt supplies to acceptance part RnWhen light grade L adopt as this
Acceptance part RnDetected value dm,n。
By pressing period PE that often shinesmMotion detection processing SB illustrated above is repeated, to by often detection week
Phase P, which is sequentially generated, to be corresponded to and each illumination region EmWith each acceptance part RnThe corresponding each test section D of combinationm,nState (each button
30 action) detected value dm,n.Control device 12 is by parsing the detected value d of each button 30m,nTime series (each button 30
Displacement change with time) and generate such performance data.
As described above, in the first embodiment, by illumination region EmWith acceptance part RnEach of combination set acceptance part Rn
Light grade L be less than threshold value LTHIn the range of level of signal, and select shine period PEmU1 and list during interior unit
During position in U2 the level of signal drive signal ZmIt is supplied to illumination region EmUnit during acceptance part R in UnLight
Grade L is as detected value dm,n.Therefore, having can generate less than threshold value LTHProper range in detected value dm,nThe advantages of.
<Second embodiment>
Illustrate second embodiment of the present invention.About being acted in each mode illustrated by following or function and first
The identical element of embodiment, the label used along the explanation for being used in first embodiment simultaneously suitably omit respective detailed
Explanation.
Fig. 9 is arbitrary 1 acceptance part RnThe detection signal Q of outputnOscillogram.Due to such as acceptance part RnIt is incidental
Transient response caused by capacitive component etc., actual detection signal QnLevel of signal (such as magnitude of current) potentially unstable become
It is dynamic.For example, as illustrated in Fig. 9, signal Q is detectednLevel of signal may during unit U (U1 or U2) starting point t1 shine
Portion EmLighting level change after and then change astatically.
Consider the above situation, in this second embodiment, detects signal Q in U during constituent partsnLevel of signal stablize
During execute the detection signal Q that A/D converters 18 carry out in (hereinafter referred to as " stablize during ") PSnA/D convert (light etc.
The generation of grade L).PS is, for example, from the starting point t1 of U during constituent parts to have passed through defined duration TA (for example, about 18 during stabilization
μ sec) time point t2 and the unit during U terminal t3 between during.The duration TB of PS e.g., about 20 μ sec during stabilization
~23 μ sec.A/D converters 18 start to detect signal after the time point t2 that the starting point t1 to U during unit delays duration TA
QnA/D convert and generate light grade L.The duration TA's since the starting point t1 of U during constituent parts until time point t2
(signal Q is detected during entirenLevel of signal change astatically during) in do not execute A/D transformation.
The detected value selector 44 of second embodiment presses period PE that shinesmDuring U acquisitions are stablized during interior per unit
Light grade L (L1 and L2) in PS.Detected value selector 44 select unit during U1 light grade L1 and unit during
Either one or two of light grade L2 of U2 is used as detected value dm,nAction it is identical with first embodiment.
Second embodiment also realizes effect same as first embodiment.In addition, in this second embodiment, detection
Light grade (detects signal Q in U during being worth the acquisition constituent parts of selector 44nLevel of signal) during the stabilization stablized in PS
Light grade L.Therefore, during constituent parts being obtained with detected value selector 44 signal Q is detected in UnLevel of signal astatically
The structure of light grade L during variation in (such as until the starting point t1 to time point t2 of U during unit during) is compared,
With accurate detected value d can be generatedm,nThe advantages of (and then can accurately detect the action of each button 30).
The detection signal Q that A/D converters 18 carry out the starting point t1 of U during unitnA/D transformation, on the other hand,
Detected value selector 44 can also be selected from the multiple light grade L generated in U during unit stablize during light in PS
Grade L.
<Third embodiment>
Each luminous period PE is instantiated in first embodiment and second embodimentmIncluding U during 2 units
The case where (U1 or U2), but shine period PEmThe total K of U is not limited to 2 during interior unit.That is, can also make each
It shines period PEmIncluding U during 3 or more units.
Figure 10 is the structure chart of the function of the control device 12 for the detection device 100 being conceived in third embodiment.Such as
Illustrated in Figure 10, the control device 12 of third embodiment, which removes, is used as element (light emitting control same as the first embodiment
42, detected value selector 44 and detection control unit 46) function other than, also be used as during control unit 48 function.Phase
Between control unit 48 control each luminous period PEmDuring interior unit during the total K and constituent parts of U U duration T.Specifically,
To detection signal Q control unit 48 is according to the starting point of U during constituent parts during third embodimentnLevel of signal it is steady
Duration TA until fixed time point t2 controls period PE that shinesmDuring interior unit during the total K and constituent parts of U U duration
T.PS during the duration T of U is duration TA during the unit the starting point t1 of U until time point t2 and stablizes during unit
Duration TB it is total.Time point t2 (stablize during the starting point of PS) of the A/D converters 18 during unit in U starts to detect signal
QnA/D transformation this point it is identical as second embodiment.
Specifically, period control unit 48 passes through drive signal Z in detecting control process SAmSupply make arbitrary 1
Illumination region EmIt shines, on the other hand, by illumination region EmEach acceptance part R is parsed when luminousnThe detection signal Q of generationn, from
And it measures from illumination region EmIt is luminous start to detection signal QnLevel of signal stablize until duration TA (such as N number of detection believe
Number Q1~QNIn maximum value).Then, during which control unit 48 sets the total of duration TA and defined duration TB and is used as the unit phase
Between U duration T.Since the duration TB of PS during stabilization is for example fixed to the generation of the light grade L of the progress of A/D converters 18
Required duration, so the whole duration T of U is variable-length corresponding with duration TA during unit.
In addition, duration T of the period control unit 48 according to U during the unit determined by above step, sets light emission period
Between PEmThe total K of U during interior unit.Specifically, period control unit 48 will can be enclosed in the light emission period of specific length
Between PEmIn unit during the maximum number of U (duration T) be set as total K.Therefore, detection signal QnLevel of signal stabilization
Required duration TA is shorter, shines period PEmThe total K of U more increases during interior unit.In addition, shining period PEmAnd inspection
The duration for surveying period P is fixed to specified value.
In detecting control process SA, the detection control unit 46 of third embodiment sets total about period control unit 48
U1~UK's is each during the unit of number K, by each illumination region EmCarry out setting signal grade (X1m~XKm).Specifically, detection
46 setting signal grade X1 of control unitm~XKmSo that illumination region EmLevel of signal X1 is suppliedm~XKmEither one or two of driving
Signal ZmIn the case of N number of acceptance part R1~RNEach light grade L be less than threshold value LTH.In addition, detection control unit 46 is pressed
Illumination region EmWith acceptance part RnEach of combination come set select shine period PEmDuring K interior unit in U1~UK
Light grade L during which unit in U is as detected value dm,n(selecting object grade).
On the other hand, in motion detection handles SB, light emitting control 42 is in each luminous period PEmThe K interior unit phase
Between U1~UK it is each in pass through level of signal XkmThe drive signal Z of (k=1~K)mSupply and make illumination region EmShine (SB3
And SB5).In addition, detected value selector 44 is by period PE that often shinesmIt selects to control in detection in U1~UK during K unit
The level of signal Xk of selecting object grade is set in processing SAmUnit during light grade Lk in Uk as detected value
dm,n(SB7)。
Effect same as first embodiment or second embodiment is also realized in the third embodiment.In addition,
In the third embodiment, according to detection signal QnLevel of signal stablize before duration TA change each luminous period PEmIt is interior
Unit during U total K and constituent parts during U duration T.Therefore, as illustrated by aforementioned for example pass through duration TA
More it is short then increase unit during U total K structure, can accurately compensate each acceptance part RnLight grade L
Error (action for further accurately detecting each button 30).
<Variation>
Above each mode can carry out various deformation.In specific mode of texturing illustrated below.It can will be from example below
Show that 2 or more arbitrarily selected modes are combined as suitable in.
(1) it shines period PEmDrive signal Z during interior multiple units in UmThe size of level of signal be arbitrary.
For example, in each mode above-mentioned, the level of signal X1 in U1 during unit is instantiatedmLess than the signal etc. in U2 during unit
Grade X2mStructure, but level of signal X1 can also be usedmHigher than level of signal X2mStructure (in luminous period PEmInterior illumination region
EmThe structure that periodically reduces of lighting level).
(2) in the detection control process SA in each mode, make drive signal ZmLevel of signal A opened from initial value
Beginning periodically increases, but can also make drive signal ZmLevel of signal A reduce from maximum value incipient stage property, and hold
Row is for selecting illumination region EmDrive signal ZmSupply (SA3) and each acceptance part RnLight grade L acquisition (SA4).
In the case of so that level of signal A is gradually reduced, detection control unit 46 judges N number of acceptance part R1~RNEither one or two of light grade L
Whether threshold value L is less thanTH.It is further possible to using being set in the detection control process SA in past (typically tight before)
Level of signal X1mOr level of signal X2mInitial value (SA2) as the level of signal A in detection control process SA.
(3) in the first embodiment, by each illumination region EmSet level of signal X1mAnd level of signal X2mGroup
It closes so as to illumination region EmSupply level of signal X1mAnd level of signal X2mEither one or two of drive signal ZmIn the case of
Light grade L be less than threshold value LTH.Also the above structure can be deformed, by each illumination region EmSetting signal grade X1m
And level of signal X2mCombination so as to illumination region EmSupply level of signal X1mAnd level of signal X2mEither one or two of
Drive signal ZmIn the case of light grade L be higher than threshold value (lower limiting value) LTH.It is appreciated that detection control from above illustrate
Portion 46 indicates that multiple level of signal are used as by illumination region E masterlymWith acceptance part RnEach of combination come the element that sets, institute
It is to illumination region E to state multiple level of signalmSupply drive signal ZmWhen, N number of acceptance part R1~RNLight grade L become rule
Multiple level of signal in fixed range (less than in the range of upper limit value or higher than in the range of lower limiting value).
(4) in each mode, the detection device 100 of the action of each button 30 of detection keyboard instrument 200 is instantiated,
But the detection object of detection device 100 is not limited to button 30.For example, it is also possible to will detection device identical with aforementioned approaches formula
100 are used in the detection of each action for multiple hand hammers (hammer) that string is hit in keyboard instrument 200 or user
The detection of each action of the multiple operating parts (such as button or handle) arbitrarily operated.It can be managed from above illustrate
Solution, by object that detection device 100 is detected it is master be expressed as the moving body that can be moved.
(5) it has been observed that the detection device 100 illustrated in each mode by the cooperation of control device 12 and program Lai real
It is existing.Program involved by the preferred mode of the present invention allows to the computer of control action test section 16 as light emitting control
42 and detected value selector 44 function, the motion detection portion 16 include M illumination region E1~EMWith N number of acceptance part R1
~RN, and according to each illumination region EmWith each acceptance part RnThe corresponding moving body of different combinations (such as button 30) action,
Change the acceptance part R involved by combination corresponding with the moving bodynLight grade L, the light emitting control 42 passes through driving
Signal ZmSupply and make M illumination region E1~EMIt is each by often shine period PEmIt shines successively, and in luminous period PEm
During interior multiple units U it is each in make drive signal ZmLevel of signal it is different, the detected value selector 44 is about N number of
Acceptance part R1~RNIt is each, by often shine period PEmSelection shines period PEmDuring interior multiple units in either one or two of U
Light grade L is as detected value dm,n.Program illustrated above can be stored in the side in computer-readable recording medium
Formula is provided and is installed in computer.Recording medium is, for example, the recording medium of non-transitory (non-transitory), CD-
The optical recordings such as ROM medium (CD) is preference, but can also include semiconductor recording medium or magnetic recording media etc.
Well known any form of recording medium.In addition, the recording medium of non-transitory includes to remove temporary transmission signal
Arbitrary recording medium except (transitory, propagating signal), and the record for being not excluded for volatibility is situated between
Matter.It is further possible to provide program to computer in a manner of distributing via communication network.It is further possible to via communication
The mode of net distribution is to computer distributing programs.
(6) preferred mode of the invention can also be determined to be in aforementioned approaches formula illustrated by detection device 100
Method of operating (detection method).Detection method (motion detection handle SB) involved by the preferred mode of the present invention is：Make
The computer for capableing of control action test section 16 passes through drive signal ZmSupply and make M illumination region E1~EMIt is each by every
It shines period PEmIt shines successively, and in luminous period PEmDuring interior multiple units U it is each in make drive signal ZmLetter
Number grade difference, and about N number of acceptance part R1~RNIt is each, by often shine period PEmSelection shines period PEmInterior is more
Light grade L during a unit in either one or two of U is as detected value dm,n, wherein the motion detection portion 16 includes M and shines
Portion E1~EMWith N number of acceptance part R1~RN, and according to each illumination region EmWith each acceptance part RnThe corresponding moving body of various combination
The action of (such as button 30) changes the acceptance part R involved by combination corresponding with the moving bodynLight grade L.
(7) according to mode illustrated above, such as structure below is grasped.
<Mode 1>
Detection device involved by the preferred mode (mode 1) of the present invention has：Motion detection portion, including multiple shine
Portion and multiple acceptance parts, and according to different from either one or two of either one or two of the multiple illumination region and the multiple acceptance part
The action of corresponding moving body is combined, the light grade of the acceptance part involved by combination corresponding with the moving body is changed；It shines
Control unit makes each of the multiple illumination region shine successively by during often shining by the supply of drive signal, and at this
Keep the level of signal of the drive signal different in each during multiple units during shining；And detected value selection
Portion, about each of the multiple acceptance part, the multiple list during selecting described shine by each luminous period
Light grade in either one or two of during position is as detected value.In above structure, each illumination region is supplied to by making
The level of signal (such as current value) of drive signal makes the lighting level of each illumination region shine by different during per unit
During change, on the other hand, by each acceptance part in during any one unit of each acceptance part selection during luminous
Light grade is as detected value.Error therefore, it is possible to compensate the light grade of each acceptance part (further accurately detects
The action of moving body).Further, since voltage corresponding with the light grade of each acceptance part need not be divided in principle
And generate multiple bleeder circuits (arrays of multiple resistive elements) by optical signal and for by illumination region it is each shine and
1 integrated circuit (multiplexer (Multiplexer)) by optical signal is selected in by optical signal successively from multiple, so with
The technology of patent document 1 compares the complication for capableing of control device structure.
<Mode 2>
Detection device involved by the preference (mode 2) of mode 1 has detection control unit, and the detection control unit is by described
Each combination of either one or two of multiple illumination regions and either one or two of the multiple acceptance part, setting supply driving letter to the illumination region
Number when the acceptance part light grade become regulation in the range of multiple level of signal, the light emitting control is in the hair
In each during multiple units during light, each of the multiple illumination region is made with either one or two of the multiple level of signal
It is a shine, the detected value selector select it is described shine during the multiple unit during in, about it is described shine
The combination of portion and the acceptance part supplies the drive signal of the level of signal set by the detection control unit to the illumination region
Unit during in the acceptance part light grade as detected value.In the above method, by the every of illumination region and acceptance part
Come the level of signal that sets in the range of the light grade of acceptance part becomes regulation, (such as light grade is less than threshold value for a combination
Level of signal), and in selecting during multiple units during shining, the drive signal of the level of signal be supplied to hair
The light grade of acceptance part in during the unit in light portion is as detected value.Therefore, it is possible to generate the detection in appropriate range
Value.
<Mode 3>
In the preference (mode 3) of mode 1 or mode 2, the detected value selector it is described shine during
In each during multiple units, the light grade during the stabilization that middle light grade is stablized during obtaining the unit, and select
Light grade in either one or two of selecting during the multiple unit is as detected value.In the above method, since detected value selects
Light grade during portion's stabilization that middle light grade is stablized during obtaining unit, so obtaining unit with detected value selector
Light etc. during light grade changes astatically in period in (such as and then after the starting point during unit during)
The structure of grade is compared, and accurate detected value (action for further accurately detecting each moving body) can be generated.
<Mode 4>
Detection device involved by the preference (mode 4) of mode 3 have during control unit, this period control unit according to from
The duration until starting point to the time point that light grade is stablized during the unit, control it is described shine during unit during
Sum and constituent parts during duration.In the above method, according to stablizing from the starting point during unit to light grade
Duration until time point controls the duration during sum and the constituent parts during the unit during shining.Therefore, pass through example
Duration before the time point that light grade is stablized is shorter, and more the duration during shortening constituent parts is to increase sum, Neng Gougao
Compensate to precision the error of the light grade of each acceptance part.
<Mode 5>
In the preference (mode 5) from mode 1 to either one or two of mode 4, the moving body is the button of keyboard instrument.
According to the above aspect, the action of each button of keyboard instrument can accurately be detected.
<Mode 6>
Keyboard instrument involved by the preferred mode (mode 6) of the present invention has：Multiple buttons；And detection device,
Each action of the multiple button is detected, the detection device includes：Motion detection portion, including multiple illumination regions and multiple
Acceptance part, according to corresponding from the different combinations of either one or two of either one or two of the multiple illumination region and the multiple acceptance part
The action of the button changes the light grade of the acceptance part involved by combination corresponding with the button；Light emitting control passes through
The supply of drive signal and make the multiple illumination region it is each by often shine during shine successively, and this shine during
Make the level of signal of the drive signal different in each during multiple units；And detected value selector, about described more
A acceptance part it is each, by each luminous period select it is described shine during the multiple unit during either one or two of
In light grade as detected value.
<Mode 7>
The computer that program involved by the preferred mode (mode 7) of the present invention allows to control action test section executes
Processing, the motion detection portion include multiple illumination regions and multiple acceptance parts, and according to each of the multiple illumination region and
The action of each different corresponding moving bodys of combination of the multiple acceptance part, changes combination institute corresponding with the moving body
The light grade for the acceptance part being related to, the processing are：Light emitting control processing, is made the multiple by the supply of drive signal
The each of illumination region shines successively by during often shining, and makes in each during multiple units during this shines described
The level of signal of drive signal is different；And detected value selection processing, about each of the multiple acceptance part, by each
The luminous period select it is described shine during the multiple unit during either one or two of in light grade as detect
Value.
<Mode 8>
The present invention preferred mode (mode 8) involved by detection method be：Allow to the meter of control action test section
Calculation machine makes each of the multiple illumination region shine successively by during often shining by the supply of drive signal, and luminous at this
During multiple units during it is each in keep the level of signal of the drive signal different, and about the multiple light
Portion it is each, by each luminous period select it is described shine during the multiple unit during either one or two of in by
Light grade is as detected value, wherein the motion detection portion include multiple illumination regions and multiple acceptance parts, and according to it is described more
The action of the corresponding moving body of each various combination of each and the multiple acceptance part of a illumination region changes and the movement
The light grade of acceptance part involved by the corresponding combination of body.
Label declaration
100 ... detection devices, 12 ... control devices, 14 ... storage devices, 16 ... motion detection portions,
162 ... light emitting paths, 164 ... light guides, 166 ... light guides, 168 ... by light path, 18 ... A/D converters,
20 ... sounding circuits, 22 ... tone playing equipments, 30 ... buttons (moving body), 32 ... occulters, 42 ... light emitting controls
Portion, 44 ... detected value selectors, 46 ... detection control units, 48 ... period control units, 200 ... keyboard instruments,
210 ... keyboards.
Claims (8)
1. a kind of detection device, has：
Motion detection portion, including multiple illumination regions and multiple acceptance parts, and according to either one or two of the multiple illumination region and institute
The action for stating the different corresponding moving bodys of combination of either one or two of multiple acceptance parts, changes combination institute corresponding with the moving body
The light grade for the acceptance part being related to；
Light emitting control makes each of the multiple illumination region be sent out successively by during often shining by the supply of drive signal
Light, and keep the level of signal of the drive signal different in each during multiple units during this shines；And
Detected value selector selects the luminous period about each of the multiple acceptance part by each luminous period
Light grade in either one or two of during interior the multiple unit is as detected value.
2. detection device as described in claim 1,
Has detection control unit, the detection control unit presses times of either one or two of the multiple illumination region and the multiple acceptance part
One each combination, setting the light grade of acceptance part when supplying drive signal to the illumination region becomes defined range
Interior multiple level of signal,
The light emitting control it is described shine during multiple units during it is each in, with the multiple level of signal
Any one makes each of the multiple illumination region shine,
It is in during the multiple unit of detected value selector selection during described shine, about the illumination region
Combination with the acceptance part supplies the drive signal of the level of signal set by the detection control unit to the illumination region
The light grade of the acceptance part in during unit is as detected value.
3. the detection device as described in claim 1 or claim 2,
In each during multiple units of detected value selector during described shine, in obtaining during the unit by
Light grade during the stabilization that light grade is stablized, and the light grade in either one or two of selecting during the multiple unit is made
For detected value.
4. detection device as claimed in claim 3,
Control unit during having, the period control unit is according to the time point stablized from the starting point during the unit to light grade
Until duration, control it is described shine during unit during sum and constituent parts during duration.
5. the detection device as described in any one of claim 1 to claim 4,
The moving body is the button of keyboard instrument.
6. a kind of keyboard instrument, has：
Multiple buttons；And
Detection device detects each action of the multiple button,
The detection device includes：
Motion detection portion, including multiple illumination regions and multiple acceptance parts, according to either one or two of the multiple illumination region and described
The action of the different corresponding buttons of combination of either one or two of multiple acceptance parts, changes involved by combination corresponding with the button
And acceptance part light grade；
Light emitting control makes each of the multiple illumination region be sent out successively by during often shining by the supply of drive signal
Light, and keep the level of signal of the drive signal different in each during multiple units during this shines；And
Detected value selector selects the luminous period about each of the multiple acceptance part by each luminous period
Light grade in either one or two of during interior the multiple unit is as detected value.
7. a kind of program allows to execute processing to the computer that motion detection portion is controlled, wherein the motion detection portion
Including multiple illumination regions and multiple acceptance parts, and appoint according to either one or two of the multiple illumination region and the multiple acceptance part
The actions of one corresponding moving body of different combinations, change the acceptance part involved by combination corresponding with the moving body by
Light grade,
The processing is：
Light emitting control processing makes each of the multiple illumination region be sent out successively by during often shining by the supply of drive signal
Light, and keep the level of signal of the drive signal different in each during multiple units during this shines；And
Detected value selection is handled, and about each of the multiple acceptance part, the light emission period is selected by each luminous period
Light grade in either one or two of during interior the multiple unit is as detected value.
8. a kind of detection method executes processing, wherein the action in the computer that can be controlled motion detection portion
Test section includes multiple illumination regions and multiple acceptance parts, and according to either one or two of the multiple illumination region and the multiple light
The action of the different corresponding moving bodys of combination in either one or two of portion, changes the light involved by combination corresponding with the moving body
The light grade in portion,
The processing is：
The each of the multiple illumination region is set to shine successively by during often shining by the supply of drive signal, and luminous at this
During multiple units during it is each in keep the level of signal of the drive signal different,
About each of the multiple acceptance part, the multiple list during selecting described shine by each luminous period
Light grade in either one or two of during position is as detected value.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-038804 | 2016-03-01 | ||
| JP2016038804A JP6524940B2 (en) | 2016-03-01 | 2016-03-01 | Detection device and program |
| PCT/JP2017/005258 WO2017150171A1 (en) | 2016-03-01 | 2017-02-14 | Detection device, keyboard musical instrument, detection method, and program |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108604442A true CN108604442A (en) | 2018-09-28 |
| CN108604442B CN108604442B (en) | 2023-01-10 |
Family
ID=59742796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780010504.3A Active CN108604442B (en) | 2016-03-01 | 2017-02-14 | Detection device, keyboard musical instrument, detection method, and program |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10782159B2 (en) |
| EP (1) | EP3425625B1 (en) |
| JP (1) | JP6524940B2 (en) |
| CN (1) | CN108604442B (en) |
| WO (1) | WO2017150171A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992105A (en) * | 2019-12-13 | 2021-06-18 | 雅马哈株式会社 | Setting device and operation member |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2022244722A1 (en) * | 2021-05-19 | 2022-11-24 | ||
| JPWO2022244721A1 (en) * | 2021-05-19 | 2022-11-24 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11296756A (en) * | 1998-04-14 | 1999-10-29 | Nippon Aleph:Kk | Detector |
| JP2005195794A (en) * | 2004-01-06 | 2005-07-21 | Yamaha Corp | Optical detecting apparatus |
| CN101739180A (en) * | 2008-11-20 | 2010-06-16 | 精工爱普生株式会社 | Sensing circuit, display device, and electronic apparatus |
| CN102252607A (en) * | 2010-04-02 | 2011-11-23 | 精工爱普生株式会社 | Optical position detecting device, robot hand, and robot arm |
| CN102314265A (en) * | 2010-06-30 | 2012-01-11 | 精工爱普生株式会社 | Optical profile type pick-up unit, display device and electronic equipment |
| CN204577083U (en) * | 2015-04-21 | 2015-08-19 | 杭州随身教育科技有限公司 | Piano white-black key sensing state |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3552374B2 (en) | 1995-11-30 | 2004-08-11 | ヤマハ株式会社 | Signal output device and optical sensor |
| JP5209287B2 (en) * | 2007-12-13 | 2013-06-12 | ローランド株式会社 | Electronic musical instrument operation position detection device |
| US20090282962A1 (en) * | 2008-05-13 | 2009-11-19 | Steinway Musical Instruments, Inc. | Piano With Key Movement Detection System |
| GB2462081A (en) * | 2008-07-21 | 2010-01-27 | Eigenlabs Ltd | A programmable sound creation interface |
| WO2016187345A1 (en) * | 2015-05-18 | 2016-11-24 | Lasermotive, Inc. | Light curtain safety system |
-
2016
- 2016-03-01 JP JP2016038804A patent/JP6524940B2/en active Active
-
2017
- 2017-02-14 CN CN201780010504.3A patent/CN108604442B/en active Active
- 2017-02-14 WO PCT/JP2017/005258 patent/WO2017150171A1/en active Application Filing
- 2017-02-14 EP EP17759642.6A patent/EP3425625B1/en active Active
-
2018
- 2018-08-29 US US16/116,183 patent/US10782159B2/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11296756A (en) * | 1998-04-14 | 1999-10-29 | Nippon Aleph:Kk | Detector |
| JP2005195794A (en) * | 2004-01-06 | 2005-07-21 | Yamaha Corp | Optical detecting apparatus |
| CN101739180A (en) * | 2008-11-20 | 2010-06-16 | 精工爱普生株式会社 | Sensing circuit, display device, and electronic apparatus |
| CN102252607A (en) * | 2010-04-02 | 2011-11-23 | 精工爱普生株式会社 | Optical position detecting device, robot hand, and robot arm |
| CN102314265A (en) * | 2010-06-30 | 2012-01-11 | 精工爱普生株式会社 | Optical profile type pick-up unit, display device and electronic equipment |
| CN204577083U (en) * | 2015-04-21 | 2015-08-19 | 杭州随身教育科技有限公司 | Piano white-black key sensing state |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112992105A (en) * | 2019-12-13 | 2021-06-18 | 雅马哈株式会社 | Setting device and operation member |
| CN112992105B (en) * | 2019-12-13 | 2024-04-19 | 雅马哈株式会社 | Setting device and operating member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108604442B (en) | 2023-01-10 |
| WO2017150171A1 (en) | 2017-09-08 |
| EP3425625B1 (en) | 2020-11-04 |
| EP3425625A1 (en) | 2019-01-09 |
| US20190011293A1 (en) | 2019-01-10 |
| JP6524940B2 (en) | 2019-06-05 |
| EP3425625A4 (en) | 2019-10-02 |
| JP2017156496A (en) | 2017-09-07 |
| US10782159B2 (en) | 2020-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108604442A (en) | Detection device, keyboard instrument, detection method and program | |
| TWI235355B (en) | Automatic player keyboard musical instrument equipped with key sensors shared between automatic playing system and recording system | |
| CN1801318B (en) | Music data modifier, musical instrument equipped with the music data modifier and music system | |
| EP2618328B1 (en) | Musical instrument equipped with a pedal, and method therefor | |
| US20060090633A1 (en) | Data acquisition system preparing inner force sense data for inner sense controller | |
| JP6070735B2 (en) | Keyboard instrument | |
| US8859877B2 (en) | Damper drive device for musical instrument, and musical instrument | |
| CN102148026A (en) | Electronic musical instrument | |
| JP2014021233A (en) | Keyboard instrument | |
| CN109243416A (en) | For generating the device arrangements and methods of drum type formula | |
| WO2019167719A1 (en) | Information processing method and device for processing music performance | |
| CN101458924B (en) | Musical sound generating device and storage medium storing musical sound generation processing program | |
| McPherson | Buttons, handles, and keys: Advances in continuous-control keyboard instruments | |
| JPH0233196A (en) | Key depressing operation detecting device | |
| Almeida et al. | The kinetics and acoustics of fingering and note transitions on the flute | |
| US9384717B2 (en) | Tone generation assigning apparatus and method | |
| US9135896B2 (en) | Pedal-operated stringed musical instrument actuator apparatus | |
| JP5707692B2 (en) | Musical instrument | |
| JP6728771B2 (en) | Detection device and program | |
| JP6665580B2 (en) | Detection device and program | |
| Hödl et al. | Exploring the design space of hand-controlled guitar effects for live music | |
| JP4207835B2 (en) | Electronic stringed instruments | |
| KR101536929B1 (en) | Electric Musical Instrument | |
| Collins | The Development of the! trumpet | |
| Adler-Mandile | Assistive Bass Guitar for Those Affected by Muscular Dystrophy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |